DES MOINES, Iowa — An AIDS research team at Iowa State University will not get a final payment of $1.38 million it had been awarded from the National Institutes of Health after a team member admitted last year to faking research results.

The NIH says the final payment of a five-year grant will not be made.

Dong-Pyou Han has pleaded not guilty in federal court to four counts of making false statements in research reports. He is free on bond awaiting trial.

Prosecutors say Han wrote a letter to university officials before resigning in 2013 in which he says he spiked samples of rabbit blood with human antibodies to make an experimental HIV vaccine appear to work. Han’s letter says he acted alone.